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Michael D. Riddle
President & CEO, Director

Michael Riddle has over twenty-five years experience in the health care industry. His experience includes the marketing, sales, business development and operation in both capital equipment and disposable medical device segments for Fortune 100 and start-up phase medical companies. Most recently he served as the Executive Vice President, Sales Marketing and Business Development for PharmaNetics Inc where he was responsible for establishing strategic alliances for distribution and product development and was part of the team responsible for completing a successful IPO. Prior to PharmaNetics, Mr. Riddle was employed by American Home Products for seven years in various positions including VP of Sales and Marketing for Sherwood Medical Devices.


Paul J. McDaniel
Executive Vice President of Operations and Quality

Paul McDaniel has over twenty years of experience in operating and improving processes related to the design, production, and field support of software and hardware based products in both the medical device and military systems industries. He has worked in medical device and military systems industries. He has served as Quality Manager, Quality Director, and Vice-President of Operations/Quality in his 3 year tenure at Sicel Technologies. He has worked in the Medical Device Field in a variety of roles including Corporate Quality Manager, Product Risk Manager, and Engineering Manager at Hill-Rom. Prior to Hill-Rom, he was engaged as a Senior Engineer working for Dynamic Systems, a Quality and Systems Engineering consulting firm in Alexandria VA. Mr. McDaniel served as a US Technical Expert to an international committee that developed the ISO standard governing the application of Risk Management Techniques to Medical Devices. He graduated from University of Kentucky with a BS in Electrical Engineering.


Gloria Beyer, PhD
Vice President of Clinical Operations, Sr. Medical Physicist

Dr. Gloria Beyer has an extensive clinical and commercial background in medical physics. Most recently Dr. Beyer was employed as a Physicist and Education Specialist by Varian Medical Systems responsible for developing and implementing clinical training programs for stereotactic radiosurgery and IMRT products. She provided world wide technical sales and marketing support in addition to providing on-site training courses for physicians and physicists in the US, Latin America, Europe and Asia. Dr. Beyer has maintained her clinical accreditation working in various radiation oncology clinics, originally as an employee and later as a consultant through her own company. Dr. Beyer received her Ph.D. in engineering sciences with an emphasis on medical imaging through Moffitt Cancer Center at the University of South Florida. She also holds advanced degrees in Medical Health Physics (University of Florida in Gainesville) and in Solid State Physics (Florida State University). Dr. Beyer is a nationally published author in the area of medical imaging and lectures frequently on this and related topics. She is fluent in Spanish, Portuguese and Italian and speaks conversational French.


Eric T. Espenhahn
Vice President of Engineering & Product Development

Eric Espenhahn has over twenty years experience in product development at both start-up phase companies and large multi-nationals. Previous to his most recent position as a Project Leader for drug discovery technology at GlaxoSmithKline he was Vice President Engineering at Xanthon a biotechnology start-up. He has successfully managed engineering and scientific teams in the development and commercialization of complex technological products including industrial inspection systems, automated microscopy systems for clinical laboratories, DNA analysis and microfluidic instrumentation for drug discovery. Mr. Espenhahn has experience in managing all aspects of engineering and software product development from concept through field support. He graduated with Honors from Carnegie Mellon University with a B.S. in Applied Mathematics (Computer Science).


Tammy B. Carrea
Vice President of Regulatory Affairs

Tammy Carrea has worked in the regulatory affairs field for such companies as AMSCO International and Separation Technologies. She was Document Control and Compliance Manager as well as QA/RA Manager for New Product Development at Cardiovascular Diagnostics where she developed and obtained approval for a Humanitarian Device Exemption submission for a drug monitoring diagnostic test through the office of Orphan Products at CDRH (similar to a PMA). Ms. Carrea graduated from North Carolina State University with a B.S. in Materials Science and Engineering.


Greg G. Mann
Vice President of Technology Development

Greg G. Mann is an electrical engineer with significant experience in design and development of electronic products. Mr. Mann was instrumental in implementing performance improvements and a 50% cost reduction in power supply designs while at Pairgain Technologies. He was a key member of the design team responsible for Exide Electronics’ successful entry into the telecom power market. Mr. Mann graduated from North Carolina State University with an MS in Electrical Engineering.


Jennifer G. Pierce
Controller

Jennifer Pierce is a Certified Public Accountant and gained her public accounting experience working for the Big Four firm of Ernst & Young, LLP, where she was responsible for audit and assurance services. While at Ernst and Young she was involved in several of her clients’ public offerings subsequently assisting in the preparation of SEC filings. Ms. Pierce graduated from the University of Alabama with a B.S. in Accounting.


Charles W. Scarantino, MD, PhD
Consulting Medical Director & Chairman of the Board

Dr. Scarantino, one of Sicel’s principal founders, is a radiation oncologist with Triangle Radiation Oncology Services. He practices in the Rex Healthcare Cancer Center in Raleigh, North Carolina. Dr. Scarantino received a Ph.D. in cell physiology at St. John’s University and an M.D. from Bowman Gray School of Medicine.